Battery Module

Abstract

A battery module is disclosed. The battery module includes a cell assembly including a plurality of battery cells, each of the plurality of battery cells including an electrode accommodation portion accommodating an electrode assembly, and an electrode lead protruding from the electrode accommodation portion and coupled to the electrode assembly; a module housing accommodating the cell assembly; a bus bar unit including a plurality of slits in which the electrode leads are inserted respectively, and a bus bar coupled to the electrode leads; and a guide member positioned between the electrode accommodation portion and the bus bar unit, the guide member including a plurality of openings through which the electrode leads pass.

1 . A battery module comprising:
 a cell assembly including a plurality of battery cells, each of the plurality of battery cells including:
 an electrode accommodation portion accommodating an electrode assembly; and 
 an electrode lead protruding from the electrode accommodation portion and coupled to the electrode assembly; 
   a module housing accommodating the cell assembly;   a bus bar unit including:
 a plurality of slits in which the electrode leads are inserted respectively; and 
 a bus bar coupled to the electrode leads; and 
   a guide member positioned between the electrode accommodation portion and the bus bar unit, the guide member including a plurality of openings through which the electrode leads pass.   
     
     
         2 . The battery module of  claim 1 , wherein the guide member seals between the electrode leads of adjacent battery cells of the plurality of battery cells. 
     
     
         3 . The battery module of  claim 1 , wherein the guide member is coupled to at least two battery cells of the plurality of battery cells. 
     
     
         4 . The battery module of  claim 1 , further comprising:
 a heat blocking member accommodated in the module housing,   wherein the plurality of battery cells are grouped into a plurality of unit cell assemblies,   wherein the heat blocking member is disposed between adjacent unit cell assemblies of the plurality of unit cell assemblies, and   wherein the guide member includes a plurality of guide members, and the plurality of guide members are coupled to the plurality of unit cell assemblies, respectively.   
     
     
         5 . The battery module of  claim 1 , wherein the electrode lead in each of the plurality of battery cells forms a shape extending in a longitudinal direction in which the electrode lead protrudes from the electrode accommodation portion, and
 wherein the plurality of battery cells are stacked in a thickness direction of each of the plurality of battery cells to form the cell assembly,   
     
     
         6 . The battery module of  claim 5 , wherein a length of the slit in a transverse direction is greater than a length of the opening in the transverse direction. 
     
     
         7 . The battery module of  claim 5 , wherein a length of the slit in a transverse direction is greater than a length of the electrode lead in the transverse direction. 
     
     
         8 . The battery module of  claim 1 , wherein the guide member includes at least one of a fiber, an epoxy resin, a mica sheet, a ceramic pad, and a flame retardant rubber. 
     
     
         9 . The battery module of  claim 1 , wherein the guide member includes a heat insulation material in the form of a gel. 
     
     
         10 . The battery module of  claim 1 , further comprising:
 a support frame coupled to the module housing and supporting the bus bar unit, the support frame including a plurality of through holes.   
     
     
         11 . The battery module of  claim 10 , wherein the support frame includes:
 a seating portion on which the bus bar unit is placed;   an upper extension extending upward from the seating portion and   a lower extension extending downward from the seating portion,   wherein the plurality of through holes are formed in at least one of the upper extension and the lower extension   
     
     
         12 . The battery module of  claim 11 , wherein the plurality of through holes correspond to the plurality of openings, respectively. 
     
     
         13 . The battery module of  claim 1 , further comprising:
 a bracket coupled to the module housing, the bracket facing the bus bar unit, the bracket forming a discharge path through which a gas passing through the bus bar unit is discharged.